package chap5;

import java.util.Scanner;

/**
 * @author oldliu
 * @since 1.0
 */
public class HE {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        System.out.println("input:");
        int val=sc.nextInt();
        for(int i=0,j=val;i<=val;i++,j--){
            System.out.println(i+"+"+j+"="+(i+j));
        }
    }
}
